Paraphrasing from Bhante Sujato’s article above,
Vitakka:
When you think, the most obvious aspect, the coarsest aspect, is the verbalizations. But they don’t happen alone. There is a kind of lifting of the mind onto an object. This is normally quite subtle, and we don’t notice it because we are interested in the words. ( though i prefer ‘application of the mind’ over 'lifting of the mind)
Vicara:
Vicara is the ‘exploring’ of something, and in ordinary language refers to wandering about a place on foot. Psychologically, it normally means a more sustained reflection or examination
Vitakka and Vicara are two necessary factors of what we normally call thought. Depending on context when Vitakka and Vicara are referred (or just Vitakka) thought can be referred.
We see something similar happening in the following Sutta. Where each Jhana is referred just by a few salient factors.
“Well then, mendicant, you should train like this:
‘My mind will be steady and well settled internally. And bad, unskillful qualities that have arisen will not occupy my mind.’
That’s how you should train.
When your mind is steady and well settled internally, and bad, unskillful qualities that have arisen don’t occupy your mind, then you should train like this:
‘I will develop the heart’s release by love. I’ll cultivate it, make it my vehicle and my basis, keep it up, consolidate it, and properly implement it.’
That’s how you should train.
When this immersion is well developed and cultivated in this way, you should develop it while placing the mind and keeping it connected. You should develop it without placing the mind, but just keeping it connected. You should develop it without placing the mind or keeping it connected. You should develop it with rapture. You should develop it without rapture. You should develop it with pleasure. You should develop it with equanimity.
The following is a comment i saved from another forum. Although it is not Jhana, nevertheless an interesting experience facilitated by Vitakka and Vicara according to my understanding.
Oh, that’s the colour green.
I meditated in front of my plants for about 25 minutes. I was able to mostly focus on my breath, which was nice.
Anyways, when I finally opened my eyes, I felt a great sense gratitude for the colour green. It’s weird, it felt as though I was seeing the colour for the first time
If i may make a commentary, when this person opened her eyes, her mind applied really well(Vitakka) to the colour green and undertook a thorough examination(Vicara) of the same.