Lets understand the meaning for the name Satheesh. Satheesh means victory for the lord. It also means the Supreme Bliss. According to Hinduism, Hinduism Dictionary & Sanskrit Dictionary:

Sath means “Truth the only Existance“.

eesh means “The Supreme power and the peace maker”.

The whole Body, Soul and Mind are the one. Hence in oneness directory, Satheesh means The Supreme Bliss and Victory for the Lord.

Reference: oneness guide, Google and several directories.