Some say it's a process.
We need to put our effort – start the ‘process’ and gradually, with continuous practice, we will achieve ‘enlightenment- and eventually become ‘Giani’ or ‘Enlightened’.
It’s like making Dahi or Yogurt from milk. We start the process and in right environment; under favorable conditions and temperature - it happens –over a period of time, it turns into yogurt.
Though, it turns into yogurt by itself, but nevertheless, it requires a ‘process’ and effort to start that process, favorable conditions and certain period of time as well.
Some will argue…. we can only start the process... watch and adjust the environment, the conditions. But yet, it may or may not happen. It may or may not turn into yogurt.
We can start the process of growing plants by putting the seeds in the ground and by making the conditions favorable; providing enough water and light. Yet some seeds come out of the ground and grow to their full capacity, while some others don’t.
Hence there is also ‘Grace’ – not just the ‘process’.
Others say Enlightenment is not a process at all.
It's a sudden leap.
It's not created or acquired …it just happens.
And it happens instantaneously.
Just like some rocks under certain conditions become diamonds. It's not a process or evolution that every rock or stone will someday turn into a diamond. Some do, some don't.
When boiling milk comes in contact with few drops of lemon juice or any highly acidic liquid, it splits instantaneously - water and paneer (cheese) are separated – not over time, but immediately.
Both the arguments seem logical.
Who is right? Which logic or argument is accurate?
It depends on individuals.
Since each individual is different and unique, their needs and requirements are also different. It depends on the status of mind of the seeker.
King Janak instantaneously became ‘Enlightened’, and immediately saw and felt himself one with the 'Creator' (Ashtavakra Gita), while Arjun needed lot of convincing, removal of doubts - guidance about 'process', and ‘time’ as well - to understand and attain the ‘Gyana’ (Bhagavad Gita)