The letter mem was most likely derived from drawing of ocean waves.
The beginning and end of the word mayim (water) signifies life force and the word mayan (fountain) points to divine wisdom flowing from an unknown source. On the spiritual level it refers to the sea of human consciousness which implies intuition and a depth of human knowledge inherent in the human soul." As conveyed by the letter mem, water symbolizes the all-encompassing Divine presence, on a spiritual and physical level." Further, mem stands for number 40 which represents the amount of time for things in nature to come to fruition. Here we are reminded of the 40 day of Noah's flood and the 40 years of Exodus the desert.
"The mem that begin the names of Moses and the Messiah allude to the concept of revealed and concealed Divinity. Moses, who revealed the Torah to his people as given to him by God, only conveyed part of the Torah. It is said that when the Messiah comes, the secret of the final mem will be revealed. The closed mem has only ever been used in the middle of a word once, in reference to the Messiah." (Janine Schloss: a cultural writer for Mindatlas.com)
Christian Perspective
One day Jesus stopped at Jacob's well in Samarta. A woman came to draw water and Jesus asked her for a drink. The woman said she could not because the Jews and Samaritans could not use the same utensils. Jesus said to her, "If you knew the gifts of God and who is saying to you, 'Give me a drink' you would have asked him and he would have given you living water." The woman could not understand how Jesus could have given her living water without a bucket. Jesus explained that the water he came to give would "become in him [her] a spring of water welling up to eternal life". After a further discussion on her having five husbands and really none because the one she was now living with was not her husband, the woman left the water jar and went to town where she told the people, "Come see the man who has told me everything I have done. Could he possibly be the Messiah?" (Jn 4:4-29) So here is the final Mem.
Nun in Arameic means fish and in Hebrew it means "kingdom" or "heir to the throne". Symbolically this letter signifies the soul enclosed in the body as well as humility due to its bent form. Nun also indicates faithfulness because it begins and ends the word ne'eman which means the faithful one. As the number 50 it has a variety of allusion to Israelite life.
This 14th letter of the Alphabet is equivalent to David, the eternal king of Israel, "By my holiness I swore once for all: I will never be false to David. His dynasty will continue forever, his throne, like the sun before me. Like the moon it will stand eternal, forever firm like the sky!" (Ps 89:36-38) The Jews believe that the successor of David will be the Messiah.
Christian Perspective
The Jewish belief concerning the Davidic Kingdom has already been realized in Christ.
About 2,000 years ago in the town of Nazareth the Angel Gabriel appeared to a virgin of Nazareth named Miriam and said: "Do not be afraid, Mary, for you have found favor with God. Behold, you will conceive in your womb and bear a son, and you shall name him Jesus.
He will be great and will be called Son of the Most High, and the Lord God will give him the throne of David his father, and he will rule over the house of Jacob forever, and of his kingdom there will be no end." (Lk 1:30-33)
Samech as a closed character symbolizes God who is the beginning and end of all things. It's also a reminder of the vacuum or void created by God in the beginning by compression of his infinite light so as to make space for creation. Samech also signifies divine support, protection and care. There are invisible realms hidden from our sight which sustains our lives. There are invisible miracles all around us of which we are not aware. Samech begins the Hebrew word (soolam) meaning ladder. This images is taken from Jacob's vision of angels ascending and descending a ladder from heaven to earth.
Christian Perspective
Christ emphasizes relying on God for our daily needs. He said to the people to look at the birds of the sky. They don't sow or reap or gather into barns but God cares for them. Consider, He said, how the wild flowers grow; they don't work or spin but not even Solomon in his splendor was clothed like them.
So Jesus says, don't worry about food and clothing because you are worth more grass or birds and your heavenly Father cares for you. Do what you are supposed to do daily and you will have what you need.
To Ayin, Pay