Yes. [ Simple and direct. He keeps his cold gaze focused on Dazai. ] It means that when the need arrives, I can protect myself and my allies.

[ It's obvious he means something more than just purely his ability to fight -- it's strength. Strength is all that matters. He'd given up everything in the name of strength and despite some of it returning, he still values strength in himself over anything else. ]

It means when everyone else around me fails, I will survive. I will outlast whatever might challenge me.

[ His words may sound inspirational when spoken by anyone else; his cold, indifferent tone casts them in a much different light. It's almost lonely. ]