Enlightenment is only difficult because the word leads to a concept of what enlightenment “is”, and what it is, is beyond conceptualisation.
Discussing something that is beyond concept, can’t really be achieved. It can lead to some misunderstandings, and argument.
Enlightenment can only be experienced, anything that I say here disturbs your concept of this conception-less, yet seeming concept. Anything that I say I have experienced is meaningless and illusive to you. Unless we both (or all) decide to embrace non-concept.
The mind is eager to attach a concept to the conception-less. This act of concept searching seems to be (from my perspective with conception) what can prevent enlightened sight.