Ok Im not sure if Im a buddhist so this perspective might not be incommon with any buddhist let alone therevada. Also Im about to through complex philosophy at you but hey this is buddhism. Just a forwarning.
In my view enlightenment is a state of perfect mental accuracy of existance. Ultimately the objective existance is just that; Objective. Void of our own views and interpretations. Its simply something that we strive towards. We can only gain the ultimate truth of our personal subjective existance. Not our memories, concepts, ideas, or any other illusionary manifestations of self but our conciousness and what we are directly concious of (not your computer but the concept, image, and sound of computer and maybe the feel of the keys) which creates concepts we rely on. The objective existance is only a common theory within just about everyones subjective mind. Everything we do with both the objective and subjective existance has to do with our understandings of them. These understandings could be wrong (an illusion) but its there function that counts.
We move with an understanding of the concepts of body, space, and purposefully done movement. We eat with an understanding of the information record known as "memory" that says eating stops hunger and provides a pleasurable taste. We give someone money with the percieved understanding that doing so will get them to give us what we want so that they will give the money to someone else to get what they want. We use our subjective concepts to effect the theoretical objective world so that we may shape our subjective universe. We use enlightenment of our subjective selves in everything we do. When we understand our subjective selves we understand how we understand. When we understand anything we understand how to use it. There is no function or activity that can not be improved by enlightenment. Lets not forget that it is solely our subjective reality that produces happyness, suffering, and anything else we ultimately do or do not want to be concious of.
Btw 1. What do you mean by spiritual and enlightenment? Spiritual is a hard word to define and due to such enlightenment is also difficult.
2. Was this post to difficult to absorb? I had a better post made up but was distracted and told I need to sign in again and lost it. Npt to mention its philisophical If you have any questions or flat out dont know what Im talking about please tell and Ill try to clear things up.