Listen to the chapter "There is no other" from the newest audiobook Ade Durojaiye's "You can open your eyes now" by Megas Seirios Publications. 

"...As Andreas carried on talking, Alex’s mind went back
to Stephen Kanja Primary School and his time in Shimba
Hills. He realised as he sat there that his compassion for
and time with Ibrahim, Jumapil and the others had carried
his depression away. He’d thought he was helping
the kids, but it turned out it was the children who had
helped him heal. [...] 
Alex had not made the connection until then. Serving, and doing so selflessly, was a form of healing with profound benefits to everyone."

Ade Durojaiye - You Can Open Your Eyes Now- There Is No Other

Omilos Eksipiretiton (The Servers' Society)