Here are some possibilities:
* Encouragement: This is a general translation, but it might not capture the full meaning depending on the situation.
* Motivation: This word focuses more on the internal drive or inspiration.
* Support: This emphasizes the external aid or assistance provided.
* Inspiration: This is a good option if "prolsahanam" refers to a source of creative or positive energy.
* Comfort: This word might be appropriate if "prolsahanam" is used in a comforting sense.
Ultimately, the best translation will depend on the specific context in which you are using the word "prolsahanam." If you could provide more context, I could give you a more accurate translation.