  Universal connectivity has been part of past and current generations of
wireless systems, but as we approach 6G, the subject of social responsibility
is being built as a core component. Given the advent of Non-Terrestrial
Networks (NTN), reaching these goals will be much closer to realization than
ever before. Owing to the benefits of NTN, the integration NTN and Terrestrial
Networks (TN) is still infancy, where the past, the current and the future
releases in the 3$^{\text{rd}}$ Generation Partnership Project (3GPP) provide
guidelines to adopt a successfully co-existence/integration of TN and NTN.
Therefore, in this article, we have illustrated through 3GPP guidelines, on how
NTN and TN can effectively be integrated. Moreover, the role of beamforming and
Artificial Intelligence (AI) algorithms is highlighted to achieve this
integration. Finally the usefulness of integrating NTN and TN is validated
through experimental analysis.
