A worshipper is one who worships all the time, both in the sense that their everyday life (eating, drinking, etc) is worship (if one does things for God's glory) and in the sense that the pauses taken to say affectionate, reverencing, things to God are everyday life (as a day-in-day-out practice). It is from this everyday life worship that one will adapt when days come along that feel not like every other day. The one who feels it that way will be accepted before God in acting on that feeling, based on how true to the feeling or conviction they remain, while doing so.