It ain't muscles though, an' that's somethin' a lot a people have a hard time r'memberin'. It's what's inside y'. Here, [Namur taps a finger against his forehead.] an' here. [He lays his hand over his heart.] Takes a lot a thinkin' an' payin' attention t' let it loose, 'specially right at first. That somethin' y' can promise t' do?