CAST(“Yechiel” as Developer) Software Engineering and Data Science at AT&T with more than 12 years of industry experience delivering architecture services and enterprise software. Hands-on specialization in Big Data, Machine Learning & NLP. CAST(“Yechiel” as Meditator ) Meditating daily (almost) for the last 8 years with more than 50 days of meditation retreats. I am Buddhism amateur scholar with a passion to the path of meditation. Disclaimer: the presenter is not an expert in the field of meditation. As for the field of development, I suggest being wary of people presenting themselves as experts.