Akukho ndlovu yasindwa ngumboko wayo

The elephant trunk can never be too heavy for the elephant.

What it means
An elephant's trunk is huge, yet it's exactly sized for what that elephant can carry. What truly belongs to you comes with the strength to bear it, even when it feels heavy.
Zulu · Southern Africa
Source and context
From: Zulu, Southern Africa
Source: isiZulu (South Africa) oral-tradition proverb (Akukho ndlovu yasindwa ngumboko wayo), translation and explanation from the Ulwazi Programme's "Zulu Proverbs" page (ulwaziprogramme.org). Earlier recorded here as also in C.L.S. Nyembezi, "Zulu Proverbs"; that book was not read

The source explains it: when something is your responsibility you have to believe that you have the power to handle it, no matter what. The wording of the meaning is ours.