思: Thought, intellect. In names, it often signifies quick thinking, sharp wit, and intelligence.
森: Flourishing, prosperous. The meaning of flourishing, when used in a person's name, aids in the vitality and vigor of life. It is a character that embodies happiness and nobility.
Meaning: Si Sen, with its melodious tone, carries the meaning of deep contemplation and the vitality of a lush forest, conveying an impression of wisdom and energy.