On a dark night an owl would be glad of a lantern.

Even someone especially capable in a particular situation may welcome help when conditions become difficult. Natural advantages do not remove the value of an extra aid when it is genuinely needed; the image does not specify any particular hardship or kind of assistance.

The saying encourages practical humility: do not refuse useful assistance merely because you are ordinarily well equipped. A small resource can matter greatly when circumstances limit even a capable person’s usual abilities.

Use it when offering or accepting an apparently unnecessary aid during unusually trying conditions. It suits a reflective comment on the sense of taking extra precautions rather than relying solely on one’s usual skill or advantage, without implying a specific kind of difficulty or help.