It bring joy,happiness,peace,seccess to mankind (1 king 8,54:66).god will dwell with u,if u praise him sincerely,our purpose of being alive today is to praise d lord (rev 4=11,isa 6=3).david praise god for his millitary ,david looked back with thankful for d thing god has done for him in life (ps 18=31-42).u too have to look back&praise god for what he has done for u during ur past&present because he deserve all d praise.god is delight to hear our praise.