During the practice of concentration, not all but most practitioners might experience different kinds of ‘transcendental’ or subtle experiences of perceiving or seeing certain subtle name and form of light/colour/shape, hearing certain subtle sound, smelling certain subtle smell, tasting certain subtle taste, or feeling certain subtle sensation. Just as the names and forms that manifest as ‘dream’ in the state of dreaming, all these are merely some ‘side-effects’ that may or may not arise during the state of concentration, sometimes are pleasant and sometimes are unpleasant, as part of the manifestation of the different Gunas/elements that are predominant at that time, influenced by the accumulated imprints in the mind, which all are also subject to impermanence and selflessness.
If there’s attachment and identification towards all these ‘experiences’, where the mind thinks and believes or acknowledges, “I am experiencing all these transcendental names and forms. I am perceiving a different reality. I am improving in my practice. I am enlightened, or I must be very near to enlightenment.” and there’s sense of pride and craving towards all these experiences, then this ‘transcendental experience’ has become an obstacle for the mind to transcend itself.
All these names and forms are part of the play or manifestation of the modification of the mind (both conscious and sub-concious, gross and subtle). It can serve as ‘a focus point’ to keep the mind in the present, or it can become ‘an obstacle’ if there’s attachment and identification coming from the impure egoistic habit of the mind towards all these names and forms that arise during the practice of concentration.
The path of yoga and meditation is all about annihilating the modification of the mind of egoism and impurities under the influence of ignorance, neither attaching towards/clinging onto or running away from the mind perception of ‘this reality’ or ‘this existence’, nor looking forward to be perceiving ‘another reality’ that is different from ‘this reality’ or to be experiencing ‘another existence’ that is different from ‘this existence’.
In meditation, it’s beyond ‘concentration’ and all that manifest in the state of concentration (perception of different reality), beyond all kinds of names and forms and qualities/attributes, or Gunas/elements.
Stand as a witness towards the modification of the mind perceiving all kinds of names and forms. The dispassionate minds forgo all kinds of ‘magnificent show/play/manifestation’ of lights, colours, shapes, sounds, smells, tastes, sensations, whether gross/subtle/transcendental. While the passionate minds unwittingly ‘falling in love with’ and ‘chasing after’ all kinds of agreeable/desirable/incredible/magnificent names and forms.
There’s neither attachment towards what the mind thinks is or is not ‘transcendental experience’. Transcending even the ‘experience’ of meditation or absorption into silence/Samadhi. There’s neither “I am meditating” or “I am experiencing silence” or “I am entering Samadhi”. Who is there to experience ‘this or that’ in selflessness/oneness/non-separateness/namelessness/formlessness/attributelessness? Even when the mind thinks and believes that it is seeing/hearing/feeling/experiencing what it thinks and believes is ‘God’ or even ‘Devil’, let it passed too.
There’s neither craving towards ‘higher realm/transition’ or ‘heaven’ nor aversion towards ‘lower realm/transition’ or ‘hell’. Just annihilating/silencing the modification of the mind.