In recent years, ancient meditation practices and mindfulness have gained significant attention in the branch of Contemplative Neuroscience. A large body of evidence exists that typically compares meditators of varying proficiency, changes in meditation states, benefits of meditation, and associated brain dynamics. Despite extensive research, the mechanisms causing these changes, their benefits, and their long-term persistence remain unclear. This study aims to conduct a comprehensive analysis of how different meditation techniques are associated with global EEG spectral amplitudes with a focus on their role in cognitive and Functional connectivity. Additionally, it also explores the challenge of distinguishing the correlation of these frequencies from causation and association. Although current research associates specific EEG frequency bands with various psychological states, the precise reason for ‘why this correlation?’ is still under active investigation. The observed gamma and theta shift in FAM and OMM states hold significant potential for further exploration in meditation research and the broader study of neural dynamics.