At that point (that we may have already heard in a previous place), I like to reproduce what Dudjom Rinpoché says about in his "Big Red Book" on the Nyingma School, it may reflect what Buddhist point of view is about ...
"Again, some say that the Pön tradition and the Great Perfection seem to be intimately connected because the diction of the Nyingmapa and Pönpo is similar. There are indeed many similarities in their doctrinal terminology and so forth, but since these [Pön works] were written so as to resemble the Budhist doctrine how could they be dissimilar? For example, it is taught that in India there were ten conventional [non-Buddhist schools] which paralleled the pious attendants, and, in the same manner, the self-centred buddhas, Mind-Only, Madhyamaka, Kriya, Carya, Yoga, Father Tantra, Mother Tantra, and Non-Dual Tantra. Likewise, in Tibet as well, Buddhist doctrines including all the texts of Madhyamaka, Transcendental Perfection, Vinaya, Treasury of Abidharma, and mantras; [means for attainment] of deities such as Cakrasamvara, Bhairava, and Vajrakila; and [the instructions of] the inner heat, Great Seal, Great Perfection, and so forth, have all had their Pönpo imintations. Those, however, are not original. So, how can one begin to refute such limitless, adventitious fantasies?
None the less, the priests of good fortune, [Pön] mantras, and so forth, which appear to be immadiately beneficial, may well have been revealed by the enlightened activities and emanations of the buddhas and bodhisattvas, because the range of the skilful means of the conquerors and their sons is inconceivable, as exemplified by the career of the "Truth-speaking Mendicant". In general, there are a great many [teachings] which, except for being merely called "Pön", in fact manifestly belong to the Buddhist doctrine. It is not right to pass final judgement as to wether they may be proven or not, for that merely generates misology.
Moreover, it has been said that there was a causal basis for the origination in pairs of Hinduism and Buddhism in India; Buddhist monks and Pönpos in Tibet, though there were no actual [Indian] extremist schools there; and Buddhists and Taoists in China. Therefore, so long as other traditions do not harm the teaching, we should just let them be. As it says in the Sutra of Candrapradipa [i.e. the Sutra of the King of Contemplation, Ch.7, v.6]:
Do not think hatefully of those
Extremists who inhabit the world.
Establishing compassion for them
Is a special feature of a beginner's patience;"
May, what ever is your practice, brings fruits ...
By understanding everything you perceive from the perspective of the view, you are freed from the constraints of philosophical beliefs.
By understanding that any and all mental activity is meditation, you are freed from arbitrary divisions between formal sessions and postmeditation activity.
- Longchen Rabjam -