References – SN 56.33: Stick 
“Does SN 35.243 imply that as long as one is not an arahant, one is overwhelmed by sense objects?” Answered by Ajahn Pasanno. [Arahant] [Sense bases] // [Feeling] [Teaching Dhamma]
Comment by Ajahn Jotipālo: Bhante Gunaratana points out that mindfulness is not an Awakening Factor until it is 100% continuous. [Bhante Gunaratana] [Mindfulness] [Factors of Awakening]
Sutta: SN 56.33: Tossing up a stick. [Rebirth] [Similes]
The Fourth Foundation of Mindfulness [2013], Session 44, Excerpt 1