At this stage in development an infant still perceives himself as an extension of you and will not begin to see himself as a separate entity until about 12 to 18 months. Developmentally, he also is already forming beliefs about himself and his world based on his experience of whether his needs are being met.
You're going to hear two extremes of opinions: Some will tell you to let him cry it out and some will tell you you need to hold him as much as possible.
There is a balance between two extreme perspectives you're going to hear people speak from. The balance point is this: A baby this age needs to know that his needs will be met and...he also will need to learn that he is capable of self soothing very soon.
So, it's got to be a balance. I call it the 10 second rule (and you can extend it to 20 seconds, 30 seconds and 1 minute and more gradually) where you allow him to cry, call to him and let him hear your voice, "I'm here! I hear you darlin'!" and then let him cry until the time is up. Go to him and speak soothingly to him and calm him, then set him down and try again.
The idea is not to leave him crying for long at all but to give him a chance to self soothe eventually. It's good for babies to cry some as much as it hurts our ears and nerves but it's also important that they have consistent reassurance that their mother (whom they see as an extension of themselves) has not disappeared... that his needs will be met until he can begin more and more to learn a bit of independence....
To help him soothe, try swings, vibrating bouncy seats, soft chennille blankets that you sleep with first to get your scent on.....
The housework will wait... He will not be this itty bitty for long.... Good luck!