A glide path gradually shifts from growth assets toward more stable assets as the goal date approaches. Target-date funds do this automatically; DIY investors can do it with scheduled allocation changes.
- Start de-risking years before the hard deadline.
- Shift new SIPs first, then existing balances.
- Keep a cash/bond reserve for near-term withdrawals.
Conclusion
Compounding needs equity. Spending needs stability. Your SIP allocation should evolve from the first toward the second on purpose.