There are small tigers and there are big tigers.
When you imagine a tiger in your head, even if you imagine it growling at you and ready to pounce, you don’t mistake it for the real thing. Your imaginary tiger can snarl and gnash it’s teeth all it wants, but you’re not likely feel afraid of it. You can take as much time as you want thinking about and analyzing this kind of tiger, turning it around and around in your head. That is a small tiger.
When you are confronted by a real tiger it is a different matter entirely. When you lock eyes with this tiger and feel its presence and majesty in your bones, there is no question of what is real or not. You do not stop to plan what you will do if you survive or spend time trying to figure out how you arrived at this moment. There is no thinking, no going back, and no turning around. There is just you and an unfathomable cat-shaped wildness meeting face to face. No one - not you, not the tiger - knows what will happen next. That is the big tiger.
When we create a plan for the future, or tell ourselves a story about the kind of person we are, or mull over something that happened in the past, we are in the realm small tigers. This is true whether we are thinking wonderful thoughts or painful ones. Of course, there’s really nothing wrong with these thoughts (even the painful ones) just as there’s nothing wrong with imaginary tigers (even snarling ones). In certain contexts it might even be quite useful to think about imaginary tigers.
All the same, it would be silly to mistake a small tiger for a big one. When we mistake the small reality of our thoughts for the big reality all around us, it’s like reacting to an imaginary tiger as though it had all the significance of a real one. We can waste a lot of time and energy this way. We might even become so distracted by small tigers that we fail to recognize and attend to the big tiger - the reality of the present moment - even as it’s pouncing on us.
Of course, the big tiger of present moment reality doesn’t always have to look like an actual tiger. It can just as easily look like your lover lying next to you in bed, or a frustrated coworker. It could be the warmth of your cup of coffee in the morning or the ache in your shoulders after a long day of work. It might even look like sickness or death. We can recognize it not by the shape that it takes at a particular moment in time, but by the unassailable immediacy of each moment of experience even as it changes and flows into the next.
When we recognize our small tigers for what they are and welcome the big tiger as it is, we open ourselves to meeting our life (and death) in a very different way. This is not meant as a philosophy or an idea, it's meant as a sign-post pointing to a particular kind of experience. The paradox of the big tiger is that we can use ideas to point to it, but to actually encounter it requires loosening our white-knuckle grip on ideas and just being... NOW. And now. And now.
When we begin to let down our guard in this way and allow the entirety of the present moment to seep in, whether it it happens to feel like the big tiger is lying down purring or eating us alive, it’s a radical exercise in unconditional acceptance. Welcoming the big tiger is not a strategy for having a pleasurable life or warding off death; rather, it’s an opportunity to experience both life and death, pleasure and pain as part of a single continuously transforming whole.