I've put about enough torches and glowstone in my basement to create daylight. When you step into the basement you can see almost wall to wall from that corner (basement dug out to bedrock). But you cannot see anything once you've walked in!!! The momen you step into the basement away from the stairs, darkness eats you.I've thought this might have something to do with luminosity and reflection off of bedrock... does bedrock absorb light? I'll be disappointed if my basement is essentially useless because of lighting.